686365076 has 6 divisors (see below), whose sum is σ = 1201138890. Its totient is φ = 343182536.

The previous prime is 686365061. The next prime is 686365091. The reversal of 686365076 is 670563686.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (686365061) and next prime (686365091).

It can be written as a sum of positive squares in only one way, i.e., 580810000 + 105555076 = 24100^2 + 10274^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 686365076.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85795631 + ... + 85795638.

It is an arithmetic number, because the mean of its divisors is an integer number (200189815).

Almost surely, 2^686365076 is an apocalyptic number.

It is an amenable number.

686365076 is a deficient number, since it is larger than the sum of its proper divisors (514773814).

686365076 is a wasteful number, since it uses less digits than its factorization.

686365076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171591273 (or 171591271 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 47.

The square root of 686365076 is about 26198.5701136531. The cubic root of 686365076 is about 882.1011585203.

The spelling of 686365076 in words is "six hundred eighty-six million, three hundred sixty-five thousand, seventy-six".